The old multiprocessing support was hard to maintain.
Since signing and caching are part of `django.core`
there is really no need to stick to our own solution.
As a result multimachine support and security are now always in place.
Fields are stored in Django's cache. The default cache used by select2
is called 'default' but can be cachanged overwriting the setting
`SELECT2_CACHE_BACKEND`.
Recommended cache backends are memcached, redis or a DB-cache.
Refactored AutoResponseView
The main reason for this refactoring is
the fact that the pagingnation was slow.
I dropped major parts of the initial code
and wrote a more django-like-approach.
Noteabley:
- get_results now retuns a QuerySet
- This commit drops django 1.6 support in favour of the JsonResponse (Backporting is possible).
